Ademola Lookman took over at West Ham but his attempted Panenka went horribly wrong, and then Ivan Cavaleiro slipped as he took one at Everton last weekend.

Those misses potentially cost Fulham five points, which would have taken them well clear of the relegation zone rather than the 18th position they currently occupy.

"At this moment in time it's well-documented that we've had some problems," said Cottagers boss Parker.

"We've missed our last three, culminating in points being dropped. When you look at it there's no denying there's been a bit of an issue here.

"If those penalties had gone in they'd have maybe contributed five points. So certainly there is something here we need to look at and it's something we are doing.

"We are trying to work out what the best processes are, the best penalty takers. It's the same as it would be if you concede a lot from set-plays, or were conceding goals due to a deficiency and working out the best solutions. This is no different.

"Of course there is a psychology behind it, in terms of who feels they are best equipped to take a penalty. And then we work backwards from there."

Fulham's players have plenty of time to hone their technique, as they do not play until Monday evening when they travel to Leicester.

"We are practising them, but we practise most weeks," added Parker.

"Who's going to take the next one? I'm not going to give you a name. It's down to who feels they can step up."